2002 Chrysler Town & Country Logo
Posted on Jun 11, 2009
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AC & Heater Fan on fast spped only

Our fan control will longer change speeds as it runs at a fast speed only.

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Most of the time this is a bad "blower motor resistor". It is easy to replace. You will find your behind the glove box in the ac/heater (evaporator) housing. Below is a pic of the resistor as it is seen from behind the glove box. 1. resistor assembly. 2. harness 3. fasteners (2). 4. lower edge of glove box. (open).

AC & Heater Fan on fast spped only - f527558.gif

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  • Chrysler Master 358 Answers
  • Posted on Jun 11, 2009
Mike Vincent
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You need to replace the blower motor resister located by the blower motor on the heater box.

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  • Posted on Oct 01, 2009
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The 'blower motor resistor' listed above is the failing component. Its not actually a resistor but instead is a small DC power supply controlled by the knob on the climate control. There is a large transistor on the circuit board that is mounted to a large metal heat sync. This transistor shorts out causing full power to be sent to the fan at all times. If you are handy with a soldering iron you can buy this transistor online for about $5 and replace the one on the circuit board.

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